Abstract
A Pr3+‐doped transparent oxyfluoride glass‐ceramic containing Ca5(PO4)3F nanocrystals was prepared by melt quenching and subsequent thermal treatment. The crystallization phase and morphology of the Ca5(PO4)3F nanocrystals were investigated by X‐ray diffraction and transmission electron microscope, respectively. The volume fraction of the Ca5(PO4)3F nanocrystals in the glass‐ceramic is about 10% and the fraction of Pr3+ ions incorporated into the Ca5(PO4)3F nanocrystals is about 22%. The peak absorption cross sections at 435 and 574 nm increase up to 128% and 132% after crystallization, respectively. The peak stimulated emission cross sections of the 3P0→3H4 blue laser channel and 3P0→3F2 red laser channel for the glass‐ceramic are 4.95 × 10−20 and 29.8 × 10−20 cm2, respectively. The spectral properties indicate that the glass‐ceramic is a potential visible laser material.
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